Vertical numerical control milling machine with workpiece platform having cleaning function

The invention provides a vertical numerical control milling machine with a workpiece platform having a cleaning function, relates to the technical field of numerical control milling machines, solves the problems that potential safety hazards exist and cleaning is not easy when waste of the working platform is cleaned, and comprises an insulating layer arranged on the outermost layer and a liner tube arranged in the insulating layer, the lining pipe extends in the length direction of the insulating layer, the spring pieces are arranged between the outer wall of the lining pipe and the inner wall of the insulating layer, each spring piece is composed of a plurality of spring pieces which are formed together and surround the periphery of the lining pipe, and when work machining is completed and a workpiece is taken down, the spring pieces are arranged on the lining pipe. And in the process of driving the discharging plates to move through a screw rod, the discharging plates are pressed through pressing blocks wi